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5649CS - 3.75 Inch Spring Steel Extension Springs

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

The 5649CS is a regular extension spring manufactured by Century Spring. It features machine hooks on both ends, allowing for easy installation. Made from high-quality spring steel, this spring is finished with a corrosion-resistant zinc coating. With a free length of 3.75 inches and an initial tension of 4.7 pounds, it provides reliable extension and tension capabilities. The 5649CS has an outside diameter of 0.625 inches and a wire diameter of 0.075 inches. It offers a maximum deflection of 2.6 inches and can handle a maximum load of 22 pounds. This spring has a rate of 6.9 lbs/inch, making it suitable for various applications.

At Century Spring, we understand the importance of fast shipping and maintaining a substantial stock inventory. With our vast selection of springs, including the 5649CS, we ensure that our customers can quickly receive the springs they need for their projects. All of our products are proudly made in the United States, guaranteeing exceptional quality and craftsmanship. Trust Century Spring for your spring needs, and experience our efficient shipping and extensive inventory firsthand.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 4.7 lb
Length 3.75 in
Material Spring Steel
Outside Diameter 0.625 in
Part Type Standard
Rate 6.9 lbs/in
SKU 5649CS
Sugg Max Deflection 2.6 in
Sugg Max Load 22 lbf
Wind Direction Left
Wire Diameter 0.075 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 2.13 kg
Length 95.25 mm
Material Spring Steel
Outside Diameter 15.88 mm
Part Type Standard
Rate 1.21 N/mm
SKU 5649CS
Sugg Max Deflection 66.04 mm
Sugg Max Load 97.86 N
Wind Direction Left
Wire Diameter 1.91 mm